376 cvii. BiGNONiACE*. (C. B. Clarke.) [Nydocahs. 



Obder cvii. BZaMONZACEH:. (By C. B. Clarke.) 



Trees {Nyetocalos a large climber, AmpMcome a herb). Leaves opposite, 

 rarely whorled (in Amphicome alternate), 1-2-3-pinnate or sometimes 

 undivided. Panicles or racemes terminal, rarely on short lateral branches ; 

 bracts inconspicuous ; flowers showy, hermaphrodite, irregular. Calyx 

 gamosepalous, campanulate (in the Indian species), valvate, spathaceous or 

 2-5-lobed. Corolla tubular- ventricose ; mouth 2-iipped ; lobes 5, subequal 

 or slightly unequal, bilabiately imbricate in the bud. Stamens 4, didyna- 

 mous, rudiment of the fifth often pi-esent (5 subequal in Oroscylum) ; 

 inserted at the point where the ooroUa-tnbe is suddenly swollen ; filaments 

 linear, glabrous or hairy only at the base; anthers 2-celled, included or 

 rarely shortly exserted ; cells elliptic or narrowly oblong, dehiscing by longi- 

 tudinal slits, parallel or divaricate. Disc usually cushion-like or annular. 

 Ovary subsessile, 2-celled ; style long glabrous, stigma of 2 elliptic lobes ; 

 ovules in many rows (in Amphicome in, 1-2 rows) grouped in a double series 

 in each cell, anatropous. Capsule mostly elongate, loculicidally or septici- 

 dally 2-valved ; septum in fruit enlarged, deciduous together with the 

 placentae. Seeds compressed discoid (rarely subtrigonous) prominently 

 winged, exalbuminous. — Species 450, in the tropics of the whole world, a 

 few in the warm temperate zones of both hemispheres. 



Herb. Leaves alternate, l-pinnate 11. Amphicome. 



Large climber. Leaves opposite, trifoliolate 1. Nictocalos. 



Tree. Leaves opposite, 2-3-pinnate. Stamens 5 perfect . 3. Oeoxylum. 

 Trees. Leaves opposite. Stamens 4 perfect. 



* Leaves undivided. 



Leaves narrowly oblong, glabrous 4. Tecoiia. 



Leaves roundly ovate, pubescent 10. DirLANTHEEA. 



** Leaves 1—2-pinjiate. 



Calyx lai^e. Capsule winged 9. Pajanbma. 



Calyx spathaceous, cleft to the base on one side 5. Dolichandbone. 



Calyx irregularly 3-5-lobed 6. Hbterophbagma. 



Calyx shortly lobed or truncate. Septum of the capsule 



cylindric, spongy 8. Stebeospebmum. 



**** Leaves Z-S-pirmate. 



Corolla-tube narrowly linear, very long 2. Millingtonia. 



Corolla-tube eylindric-ventricose 7. JlATODEifrBON. 



Signonia macrostaohffa, leeta and glauca, Wall. Cat. 6504, 6505, 6506, were 

 collected in Ava, not in British India. Mgnonia ocsyphylla, DC. Pjiodr. ix. 169, is 

 said to be from India in Wallich's Herbarium. There is no plant under that name 

 now in Wallich's Herbarium, nor is it'likely that any tree of the genus Biguonia is 

 wild in India. 



I. XTYCTOCAZiOS, Teysm. ^ Binn. 



Large glabrous climbers. Leaves opposite, 3-foliolate ; leaflets petioled, 

 entire. Feduncle terminal, long, few-fld. Calyx tubular-campanulate, 

 truncate or with 5 short teeth. Corolla large, white; tube very long; 

 segments 6, round. Stamens (in the Assam species) 4, didynamous. 



